This is a very large genus containing nearly one hundred species, chiefly from tropical climates. Like the last, it has naked sori, but here they are linear. The name is from 12 Gymnogramme 505 naked, and 12 Gymnogramme 506 , writing, in reference to the naked sori.

1. G. leptophylla. - This is a dwarf fragile annual species with bi- or tri-pinnate tufted fronds and narrow linear pinnules. The inner fronds are on longer stipes, and more fruitful than the outer. It is a very widely distributed plant, and may be raised from spores with very little trouble.